I found these quotes http://www.personal.dundee.ac.uk/~kbaar/DrKeithbaar.html
"An expert is a man who has made all the mistakes which can be made in a very narrow field." (Niels Bohr)
"There are two possible outcomes to an experiment: if the result confirms the hypothesis, then you've made a measurement. If the result is contrary to the hypothesis, then you've made a discovery." (Enrico Fermi)